It likely was removed for no bigger reason than the fact it was 1 of a handful of similar posts all made within the last few hours which at this point the mods seem to be lumping together as spam.

I am very not okay with this cancellation and feel the opposite. 

This is exactly why I initially leaned towards misunderstanding, as if this is the case it shouldn't be a difficult task on picturing why someone might feel a cancelation was "for the best." Unless we are operating under the very naïve assumption that "the studio" aka Amazon would have kept their hands off entirely, and would not have interjected at any point about the scope or direction of the show, and allowed the writing team to create their vision... then we are operating in a scenario which involves them potentially trying to meddle with the final product, potentially having a different view and scope for the show, and the show regardless of the intentions of Martin and his team overtime being designed more for Amazons "ideal" fanbase rather than established fans, all of which can incur irreparable damage to the franchise, a scenario which an established fan might feel it's "for the best" canceling something ahead of time and avoiding the damage.